* Switch on/off button: Press the button to play, and press again to pause. The motor operates in sync with the musicrotating when music plays and stopping when paused. * Mode button: Allows switching between 12 built-in songs. Each press advances to the next song. Music automatically starts playing when powered on. * Volume button: Two buttons with identical function to adjust volume. Cycle through three fixed levels: high, medium, and low. Each press changes the volume level accordingly. [Adjustable Volume] This baby music box offers 3 volume levels. The crib mobile motor allows smooth volume adjustment from 0 to 100 for personalized sound control. [Soft Music] Features 12 soothing lullabies that can be switched freely. Play one after another or select your babys favorite to help them fall asleep quickly. [User-Friendly Design] Automatically turns off after 30 minutes to conserve power and support uninterrupted sleep. [Compatibility] Fits most crib mobile hangers and crib mobile arms. Requires 2 AA batteries (not included). Color: White Material: ABS Size: 14 x 9 x 3.5 cm Package Contents: 1 x Music Box Only the above items are included; other accessories are not part of the package. Note: Lighting conditions and monitor settings may cause slight color variations between the image and the actual product. Measurement error is permitted within +/- 1-3 cm.